Stove or oven door.



No. 687,25I.

Patented Nov. 26, l90l. W. A. MUORE. STOVE 0B OVEN D003. V (Application led June 3, 1901.)

(No Model.)

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NITED STATES PATENT OFFICE.

WILLIAM A. MOORE, `OF DAYTON, OHIO.

sTOvE O'R OVEN DOOR.

SPECIFICATION forming partl of Letters Patent No. 687,251, dated. November 26, 1901.

Application filed .Tune 3,1901. Serial No. 62,842. (No model.)

To all whom it T12/Cty concern:

Be it known that I, WILLIAM A. MOORE, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Stove or Oven Doors; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification. l

This invention relates to improvements in oven-doors for stoves and ranges, and comprises an opening in the door, which is inclosed by glass, thus forming a window through which the contents withinthe oven may be viewed at all times withoutbeing coinpelled to open the oven-door.

Heretofore attempts have been made to provide a transparent door constructed, for example, of mica or of glass. The former has not been found practicable owing to the opaque nature of the material, and thelatter has been found objectionable owing to its liability to break in closing the door, which is due to the manner in which the glass is mounted.

The object of the present invention is to provide a glass Window in an oven-door in which the glass is so arranged that any breaking thereof due to the opening and closing of the oven-door will be prevented.

Precedn g a detail description of my invention reference is made to the accompanying drawings, of which- Figure l is an elevation of an oven-door having my improvements attached. Fig. 2 is an enlarged vertical section on the line w w of Fig. l, parts being broken away. Fig. 3 is a sectional View showing the pockets formed between the rings when said rings are placed together. Fig. 4. is a detail View of the asbestos cord.

A and B designate two metallic rings. One of these may be cast with the'oven-door G, and thus become an integral part thereof, or the two rings may be attached to the ovendoor, as hereinafter specified. Each of said rings has an annular iiange Al and B projecting from its inner face, which flanges lie adjacent to each other when the rings are assembled as in the drawings, whereinit is seen that the outer edges of said flanges abut with the inner sides of the rings, and thus form distance-pieces for said rings, and thereby the said rings may be rigidly brought together without allowing any of the metal to come in contact with the glass plate I. These flanges further serve, in connection with the asbestos packing, hereinafter described, to prevent any circulation of air through the appliance, and, further, they serve as a wall to divide the space between the rings into two compartments or pockets E and F. /Vhen the rings are assembled, as before stated, there are two annular pockets E and F provided, between which there is no communication of air. In these pockets suitable packing is placed, as will presently appear. O and C designate two inner marginal beads projectingfrom said rings A and B and which are essentially of less depth than the annular flanges A and When the said rings are placed together, they are united by a clamping-bolt D, which passes through said rings at suitable points and rigidly secures said rings in position.

Gdesignates an oven-door, which has a suitable opening therein surrounded by a marginal edge, which isinclosed within the space F.

I designates va window or glass plate, the circumferential edge of which is projected into the space E. On each side of the inclosed parts of the door G andthe glass plate I there is placed packing J, which consists of asbestos cord, as shown in Fig. 4. As shown in Fig. 2, this asbestos packing is inclosed between the inner surfaces of the rings A and B and the outer sides of the door G and the glass plate I and is compressed into an oblong shape in cross-section. This asbestos packing being round when first introduced and subsequently compressed, as before stated, forms a fiexible cushion on both sides of the glass, keeping it at all times free from conv ICO and the metal. The connection between the rings and glass plate on one side and between the said rings and oven-door on the other side is made alone through the asbestos packing J. The screws or bolts D maintain a rigid contact between the rings, the asbestos packing, the oven-door, and the glass plate.

The provision of the two separate and independent pockets E and F is an im portant feature of my invention, as thereby I am enabled to make a rigid attachment with the oven-door, which is entirely free from any connection with the metal on either side of the pocket. Also a connection is made with the glass which is entirely free from any contact with the metal on either side of the pocket. Therefore any amount of slamming of the oven-door which the iron itself will admit of will not endanger the glass, and, further, a comparatively thin quality of glass (which is preferable, as it is more uniformly and quickly heated) may be employed.

XVhile I have shown in the drawings two rings A and B, one of these may be dispensed with when it is desirable to construct an ovendoor with an especial View to the application ot my improved window. In this case one of the said rings or the essential parts thereofto wit, the annular flange A and the annular bead C-might be cast integrally with the oven-door.

The window attachment is not only suited to a door, but may be applied to any of the walls ofthe oven, and its shape of course may be either round, square, or any rectangular shape.

Having described my invention, I claim- 1. The combination with an oven-door, two clamping parts having projected from their inner sides annular flanges which occupy adjacent positions when the said parts are united and provide two separate annular pockets, one of said pockets being adapted to receive the surrounding edge of said oven-door, a glass plate, the edge of which is projected into the other of said pockets, an asbestos packing-cord placed within said pockets between the oven-door, the glass plate, and the inner sides of said clamping parts, and whereby any contact between the glass plate and the metal is prevented.

2. In an oven-door, two clamping parts having projected from their inner sides annular flanges which occupy adjacent positions when the clamping parts are assembled and which enable said parts to be rigidly united to provide two annular pockets, two annular beads projecting from the inner marginal edges of said clamping parts, a glass plate projected between said annular beads into one of said pockets, the other of said pockets receiving the edge of the oven-door, and asbestos-cord packing placed between the inner surfaces of said clamping parts and said glass plate, and oven-door, and means for uniting said parts to the oven-door.

3. In an oven-door,l the combination of two annular clamping parts having projected from their inner sides two flanges which hold said parts a suitable distance apart to provide two separate and non-communicating pockets, the said tianges being the parts against which the said annular clamping parts are tightened, beads projected from the inner margin of said clamping parts, a glass plate projected between said beads into one of said pockets, asbestos packing placed on each side of said glass plate within said pocket and forming a cushion for holding said glass plate in position free from contact with the metal, and means for uniting said clamping parts.`

4. The combination with an oven-door, two clamping parts having projected from their inner sides flanges which occupy adjacent positions when the said parts are united and provide two separate pockets, one of said pockets being adapted to receive the surrounding edge of said oven-door, a glass plate, the edge of which is projected into the other of said pockets, an asbestos packingcord placed within said pockets between the oven-door, the glass plate, and the inner sides of said clamping parts, and whereby any contact between the glass plate and the metal is pre vented.

In testimony whereof I aftix my signature in presence of two witnesses.

WILLIAM A. MOORE.

Vitncsses:

R. J. MCCARTY, JOHN W. KALBrUs. 

